MIL-W-3970/19 April 4, 1977
WAVEGUIDE ASSEMBLIES,RIGID,30-DEG.H-PLANE BEND
This specification is approved for use by all Departments and Agencies of the Department of Defense.
The complete requirements for procuring the waveguide assemblies described herein shall consist of. this document and the latest issue of Specification MIL-W-3970.